• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
Re: Inheritance and prefetching
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Inheritance and prefetching

  • Subject: Re: Inheritance and prefetching
  • From: Alexis Tual <email@hidden>
  • Date: Mon, 09 Dec 2013 23:41:28 +0100
Hi Ken,

thanks for your suggestion, but I already have the backpointing relationship...
I'll try to do a simple projet to isolate the issue.

Alex



2013/12/6 Ken Anderson <email@hidden>
In ancient times… (and I mean like, 15 years ago)

A back pointing relationship from the subclasses of B to the abstract A (where the to-many relationship ‘toB' is) was necessary for all the plumbing to hook things up when the EOs came back from the prefetch.

Ken

On Dec 5, 2013, at 3:08 PM, Alexis Tual <email@hidden> wrote:

> Hi,
>
> I have 2 single table hierarchies :
> - B1 inherits from B
> - A1 inherits from A (abstract), A1 has a to-many relationship to B, let's call it toBs
>
> is it possible to prefetch this relationship ?
>
> We can't manage to get it work, I'll past the obscure exception tomorrow but can anyone confirm that this kind of prefetch works with EOF ?
> I've also tried ERXBatchFetchUtilities which seems promising "This works much like prefetching with fetch specifications, however this implementation is able to work around inheritance where prefetching fail", but no luck :/
>
> Thanks
>
> Alex
>
> _______________________________________________
> Do not post admin requests to the list. They will be ignored.
> Webobjects-dev mailing list      (email@hidden)
> Help/Unsubscribe/Update your Subscription:
>
> This email sent to email@hidden


 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden
  • Follow-Ups:
    • Re: Inheritance and prefetching
      • From: Ken Anderson <email@hidden>
References: 
 >Inheritance and prefetching (From: Alexis Tual <email@hidden>)
 >Re: Inheritance and prefetching (From: Ken Anderson <email@hidden>)

  • Prev by Date: Re: java.lang.IllegalStateException: Trying to check out a session twice in one RR loop
  • Next by Date: Re: Inheritance and prefetching
  • Previous by thread: Re: Inheritance and prefetching
  • Next by thread: Re: Inheritance and prefetching
  • Index(es):
    • Date
    • Thread